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Bending moment resistance of dowel corner joints in case-type furniture under diagonal compression load 被引量:1
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作者 Mosayeb Dalvand Ghanbar Ebrahimi +1 位作者 Mehdi Tajvidi Mohammad Layeghi 《Journal of Forestry Research》 SCIE CAS CSCD 2014年第4期981-984,共4页
We investigated bending moment resistance under diagonal compression load of comer doweled joints with plywood members. Joint members were made of ll-ply hardwood plywood of 19 mm thickness. Dowels were fabricated of ... We investigated bending moment resistance under diagonal compression load of comer doweled joints with plywood members. Joint members were made of ll-ply hardwood plywood of 19 mm thickness. Dowels were fabricated of Beech and Hornbeam species. Their diameters (6, 8 and 10 mm) and depths of penetration (9, 13 and 17 ram) in joint members were chosen variables in our experiment. By increasing the connector's diameter from 6 to 8 mm, the bending moment resistance under diagonal compressive load was increased, while it decreased when the diameter was increased from 8 to 10 mm. The bending moment re- sistance under diagonal compressive load was increased by increasing the dowel's depth of penetration. Joints made with dowels of Beech had higher resistance than dowels of Hornbeam. Highest resisting moment (45.18 N.m) was recorded for joints assembled with 8 mm Beech dowels penetrating 17 mm into joint members Lowest resisting moment (13.35 N.m) was recorded for joints assembled with 6 mm Hornbeam dowels and penetrating 9 mm into joint members. 展开更多
关键词 bending moment resistance PLYWOOD dowel diameter cor-ner joint case-type furniture
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热轧带肋钢筋表面纵向裂纹的成因分析 被引量:5
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作者 梁志勇 《冶金丛刊》 2012年第5期12-16,共5页
采用金相检验、扫描电镜及能谱分析等方法对热轧带肋钢筋表面纵向裂纹进行综合分析,发现产生表面纵向裂纹的主要原因是由于连铸钢坯的角部裂纹、皮下气泡和夹杂。讨论了钢筋亚表层的夹杂物对钢筋纵向裂纹的影响并提出相应的改进措施。
关键词 热轧带肋钢筋 金相检验 表面纵向裂纹 角部裂纹 皮下气泡 夹杂物
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